Elevating and hoisting apparatus.



C. W. LEVALLEY, D. FRASER & S. SHAFER, JR.

ELEVATING AND HOISTING APPARATUS.

APPLICATION FILED JULY 9. 19M. 1,21,179. Patented Oct. 8, 1.918.

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z z y 5 6 gqzaado cs: M W M E 5 12/ if a? 7 %7 J'. fluent? CHRISTOPHER W. LEVALLEY, DONALD FRASER, AND SAMUEL SHAFER, JR., OF

MILWAUKEE, WISCONSIN, ASSIGNORS TO CHAIN BELT COMPANY, OF MIL- WAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

ELEVATING- AND HOISTIN APPARATUS.

Specification of Letters Patent.

Patented Oct. 8, 1918.

Application filed m 9, 1914. Serial No. 849,998.

To all whom it may concern:

Be it known that we, CHRISTOPHER W.

ILEVALLEY, DONALD FRASER, and SAMUEL.

SHAFER, J r., citizens of the United States,

residing at Milwaukee, in the county of 'Milwith especial reference to being used for elevating mixed concrete and delivering it at a considerable, height, so that it may be employed in the rapid and economical con-.

struction of retaining walls, although, as will be understood, the invention is not limited, in its useful applications, to an elevating apparatus of this particular kind.

In the accompany draw'ings,v

Figure 1 is a side elevation of an apparatus embodying'our invention;

Fig. 2 is a'plan view of the same;

Fig. 3 is a transverse sectional view of the apparatus showing the tower in elevation;

Fig. i is a horizontal sectional viewtaken through the two sections of a telescoping tower. Fig. 5 is a side elevation illustrating the relationship between the discharge chute and the elevator bucket, and the means for automatically controlling the delivery of the material discharged from the latter.

The apparatus illustrated is usually supported upon a movable truck, as for instance, a platform railwaycar A, upon which, preferably near one end, is supported a folding tower B, which is preferably of hollow skeleton construction, and, when of great height, is formed of telescoping sections. The tower is pivoted, at b, to a base frame C secured to the car, and on this pivot I ering the tower, we employ .gin poles or jack tower E, preferably one on each side the gin poles.

of the tower B, in which are supported pulleys over which pass the cable'or cables by which the movements of the tower are controlled. Each gin pole is adapted to be folded down out of the way when not in use, and is hinged at its lower end, preferably upon the same axis or hinge b, as that employed for the tower B.

Brace pieces F arepivotally connected with the upper ends of the gin polesat f, and extend rearwardly and downwardly therefrom. They are adapted to be securelv fastened to stationary framework, as at f,

when the gin poles are raised into working position. The lower ends of the braces F are supported upon and guided by tracks G on the top of the framework H as the braces are moved in letting down or raising The positions of the gin poles and braces when elevated and secured in working position, are illustrated in full lines in Fig. 1, and those occupied by them when let down are indicated by dotted lines.

I designate the cable by means of which the movements of the tower are controlled. It extends from a suitably driven winding drum J over-guide pulleys 2, 2, in the framework H, thence to a pulley 3 supported by.

one of the gin poles near its upper end, thence to and around a pulley 4 on the tower, and back to a pulley 5 at the end of the gin pole carrying the pulley 3, thence to and around a pulley 10 on that brace plece F which is connected with the said gin pole, thence across to the opposite brace piece and around a pulley 11 supported thereby, thence to a pulley 6 on the end of the gin pole to which the last mentioned brace piece is connected, thence to a pulley 7 on the side of the tower across from they pulley 4, and back to a pulley 8 on the gin pole on that side of, the apparatus, whence it extends to some suitable point on the stationary frame where it is secured, as at 9. By this arrangement the raising and lowering of the tower is-controlled by means of a single cable; but of course the cable arrangement describedand illustrated might be varied from that shown and two cables employed instead of one though the arrangement shown is preferred.

The tower illustrated consists of two sections, the main lower section B, and an up- .per section B; The section B is Preferably of skeleton construction and rectangular in cross section, and into 'it the u per section B telescopes.- In order to gui e'and'brace the upper section B it is provided at its corners with rubbing pieces k that are adapted to engage with angular guides K carried by the mam, lower section B. "The movable section of the tower is raised by means of a cable or cables Z that pass to a drum L that may be either hand-operated or power controlled, as found most desirable.

Thesecables are secured to the movable section of the tower near its lower end, and

' sections and arrange them telescopically as the arrangement of guide rails whic described.-

When the tower is moved into upright position and i ready for work, it is rigidly secured to the supporting base C by bolts, or otherwise, as indicated at c.

A rope or cable m extending from the tower to a winding drum M, suitably located, may be employed for starting the tilting of the'tower when it is desired to lower the same. After the tower has been tilted or swung sufliciently far to cause it to fall under'the influence of gravity, its movements are controlled by the cable 1.

N represents a hoisting bucket for' conveying material, arranged to travel up and down within the tower. In its general fea tures it may be of any usual or preferred construction, and its movements are controlled by a cable a leading to a hoisting engine 0.

he bucket is provided on its sides, with guide pieces P, preferabl two on each side,

spaced apart as indicate in Fig. 5. These gulde "PIECES engage with'guide rails car-- ried by the tower. When 7 the tower is formed of two sectlons telescoping one into the other, as has been described, we

will now be described. Q, Q, are Trshaped rails secured fast'to the upper movable section B of the tower. At the sides of these rails, and parallel therewith, are other guide ralls Q, Q, that, at their lower ends, are secured fast, in any suitable manner, to the lower portion B of the tower, and have their upper free portions held inplace and gulded by clips g secured to the section B of the tower.

ThlS arrangementpermits the sections of the tower to e moved with reference to each other, and yet maintains continuous guides for the bucket whether the tower be extended to its full capacity or the sections be more or less telescoped together.

The tower and elevating devices described refer have been devised with especial reference to being used in connection with a concrete mixing machine, which is designated B.

This may be of an usual or preferredtype and need not be urther described.- It de--- li'vers its-product to the bucket through a chute R.

S designates a chute supported in the upper portion of the tower into which the contents of the bucket may be discharged.

- It in turn, delivers to a conduit or conveyer by which the concrete or other material is carriedto the desired place of delivery. As

shown, it consists of a spout T provided with a receiving hopper T into which the chute S discharges. The end ofthe con veyer carryin thehopper T is mounted upon a pivote support U that permits the spout to be turned so that its range of delivery may be over a wide area. he support U is mounted in a bracket V carried y the tower.

The chute S is pivotally supported so as to be automatically movedout of the way of the bucket as it travels up and down the tower.

We prefer that it should be suspended by links 8 pivoted to the tower at s.

W designatesa cam bar secured to the chute S and arranged to be engaged by a contact pin or pro ection to carried by the bucket. The shape of the bar W is such that as the bucket approaches the chute, when moving in either direction, the pin engages therewith and forces it and the chute to one side, suficiently far to permit the bucket to pass'the chute without engaging therewith. As soon as the bucket has passed and the pin w disengages the bar W,

the chute comes back to normal position by 7" gravity.

The cam 1s provided with a seat w in which the pin w'rests when the parts are in proper position for the bucket to discharge into the chute S. When the pin rests in this seat the chute is held with suflicient moving away from the bucket w en the charge of the latter passes to the chute.

The shape of the seat is such, however, that i when the bucket starts to descend, the pin 'w passesoutof the seat and forces the cam bar to one side, moving the chute to let to discharge the bucket into the chute S, by; an attendant stationed adjacent to the IDlXlIlg machine R. Z represents a stop or contact device with which the arm a:

firmness to prevent it from swin 'ng or preferably formed with a i may be controlled. 3 represents a cord that may be secured to the arm and serves as v the means by which the gate may be opened .be utilized for the location of storage bins in which may be placed the materials from which the concrete mixed in the machine is made. i

What we claim is 1. The combination'of a supporting base, a tower pivoted thereto, a gin pole pivoted to the base, a brace pivotally connected with the gin pole near its upper end and adapted to have its lower end connected with the base to hold the gin pole in a fixed upright position, a cable-connecting means between the upper portion of the gin pole and the tower, and means for controlling the movements of the cable-connecting means,whereby the tower may be raised and lowered.

2. The combination of a tower pivoted to a supporting base, a gin pole pivoted at its lower end, a brace pivotally connected to the upper end of the gin pole arranged to hold the latter rigidly in upright position, a track for guiding the free end of the brace as the gin pole is being lowered, and flexible means for controlling the movements of the tower extending between it and the upper end of the gin pole.

CHRISTOPHER W. LEVALLEY.

.DONALD FRASER.

SAMUEL SHAFER, JR. l/Vitnesses:

C. F. MESSINGER, G. J. GRAsLn 

